Studies on Global-Scale Air-Sea Interactions

本研究是为了促进世界气候研究计划（WCRP）下的TOGA（热带海洋和全球大气）/ NEG（数值实验组）的模拟活动。因此，它涵盖了TOGA/NEG的所有国际成员和活跃的GCM（大气环流模式）在日本的modelers. In第一年，使用OGCM，我们确定了暖水积累的机制之前，ENSO事件在西太平洋。此外，我们可以模拟详细的季节演变的哥斯达黎加圆顶在世界上第一次。除此之外，我们还研究了热带地区不同时空尺度的季节内扰动和相互作用。第二年，我们详细分析了棉兰老岛圆顶，并加速了国际上对低纬西边界流对短期气候变率作用的研究。另一方面，我们讨论了深海环流对长期气候变化的作用， ...更多信息 能力后者是为了将本研究与未来的气候年代际变化研究计划顺利衔接起来。最后一年我们与国外机构合作开展了海洋模式比对项目。结果是非常有希望的，我们的模型在国际社会中排名很高。MRI（气象研究所）也完成了其高性能的海气耦合GCM的构建。这种耦合的大气环流模型现在是国际社会的主要模型之一。所有这些都是在本方案下与慷慨的外国成员积极合作的结果。为了总结我们的项目，在日本科学理事会、日本海洋学会和日本气象学会的支持下，我们在东京成功地举办了气候变化与海洋国际研讨会。我们现在要建立一个新的国际计划，在CCCO下重点研究年代际气候变化（气候变化和海洋委员会）。少

This study is to promote modeling activities relating to TOGA (Tropical Ocean and Global Atmosphere) / NEG (Numerical Experimentation Group) under WCRP (World Climate Research Program). Thus it covers all international members of TOGA/NEG and active GCM (General Circulation Model) modellers in Japan.During the first year, using an OGCM, we identified the mechanism of warm water accumulation prior to ENSO events in the western Pacific. Also, we could simulate the detailed seasonal evolution of the Costa Rica Dome for the first time in the world. In addition to those, we investigated intraseasonal disturbances and interactions among different space and time scales in the tropics.During the second year, we analysed the Mindanao Dome in detail and accelerated the international efforts toward investigating the role of low-latitude western boundary currents on the short-term climate variability. On the other hand, we discussed the role of a deep sea circulation on the long-term climate varia … More bility. The latter is to connect smoothly the present study with a future program which will treat of interdecadal climate variabilities.During the final year we had a cooperative project of ocean model intercomparison with foreign institutions. The result was quite promising and our models were ranked high in the world community. MRI (Meteorological Research Institute) also finished constructing its high-performance coupled ocean-atmosphere GCM. This coupled GCM is now one of the leading models in the world community. All those are the outcome of the active cooperation with generous foreign members under the present program. In order to summarize our project we held an international symposium on climate changes and the ocean successfully in Tokyo under the support of the Science Council of Japan, the Oceanographic Society of Japan and the Meteorological Society of Japan.On the basis of the present study, we are now going to establish a new international program which focuses on the interdecadal climate variabilities under CCCO (Committee on Climatic Changes and the Ocean) of IOC/SCOR. Less